Sounds like the way car mechanics can also treat ladies that they think know nothing
I agree with all the comments above, including the one suggesting you ask the Geek Squad specifically what's wrong (if only for the curiosity value!). :iagree:
Good luck with what you decide.
EDIT: Re: the suggestion of buying the new component from Sony and getting someone to fit it - I'll be willing to bet my entire blank media collection that Sony would charge way more for the part, than you would pay from a regular PC store.